From disguising the evidence of a late night out to minimizing the appearance of blemishes, concealer is a cosmetic secret weapon. While a skin-toned concealer can work wonders on its own, a color-correcting concealer can also come in handy to target specific concerns such as skin discoloration.For example, you can use a peach formula to erase under-eye circles and a green one to tone down the look of red acne flare-ups. In this guide, we’re breaking down everything you need to know about color-correcting concealers, including how to choose the shade that’s right for you, some of our favorite color correctors and makeup tips and trends.